Claude Desktop Buddy
Bring Claude into the physical world with maker hardware
Claude Desktop Buddy launched on April 20, 2026 with 485 votes, #25 of 21,248 launches that month and more than 99% of that year's launches.
In plain words
Claude Desktop Buddy is an open-source tool that connects Claude's desktop application to physical microcontroller hardware like the ESP32 through a lightweight Bluetooth Low Energy API. It enables makers to display Claude's states on hardware devices, manage permission prompts, and integrate Claude Code and Claude Cowork with physical systems. The software bridges the gap between Claude's AI capabilities and tangible maker projects.
written from the facts on this page · September 2026
From the sources
Claude Desktop Buddy exposes a lightweight BLE API from the Claude desktop app. It allows makers to connect Claude Cowork and Claude Code to physical microcontrollers (like the ESP32) to display states, handle permission prompts, and more.
Reference and an example for the Bluetooth API for makers in Claude Cowork & Claude Code Desktop - anthropics/claude-desktop-buddy
Claude for macOS and Windows can connect Claude Cowork and Claude Code to maker devices over BLE, so developers and makers can build hardware that displays permission prompts, recent messages, and other interactions. We've been impressed by the creativity of the maker community around Claude - providing a lightweight, opt-in API is our way of making it easier to build fun little hardware devices that integrate with Claude. Building your own device? You don't need any of the code here. See REFERENCE.md for the wire protocol: Nordic UART Service UUIDs, JSON schemas, and the folder push transport. As an example, we built a desk pet on ESP32 that lives off permission approvals and interaction…from github.com
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